1956guillotineguy
New member
Yes, it spins smooth and quiet.
Flail Mower Let's talk flail mowers
- Thread starter TNhobbyfarmer
- Start date
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leonz
Super Member
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I am sending you a PM
leonz
lostcreekranch
Super Member
- Joined
- Dec 14, 2012
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- 7,948
- Location
- Austin County, Texas
- Tractor
- NH TL-100A with Bush Hog 5045 FEL, WR Long 3rd function, LS XR4155HC w/FEL, WR Long 3rd Function.
Hope you can share possible solutions with all, since balance is potential problem with used flail mowers.
1956guillotineguy
New member
Leonz, thanks for the PM. I sent you an Email, but got no reply. I'm not tech savvy, so I may have screwed something up.
ramptester
New member
Well, the Mott gearbox appears to be toast. Leonz looked at some pics and confirmed. Both the larger ring and smaller pinion are severely worn, and the new gear oil we put in just 5 hours ago was already silver-ish.
Unfortunately it also appears to be the older gearbox where the pinion alone is $1000. Flailmaster recommends replacing with the updated gearbox. Best price on that is $1400.
I have looked all over for a comer box, but this one must be proprietary to Alamo. Cant find one with input side larger mounting holes and correct spline and increasing gear ratios (looks to be about 1:4).
Options are limited beyond finding a salvage unit, buying a new box, or buying a used complete mower to rob the gearbox.
Any thoughts?
Unfortunately it also appears to be the older gearbox where the pinion alone is $1000. Flailmaster recommends replacing with the updated gearbox. Best price on that is $1400.
I have looked all over for a comer box, but this one must be proprietary to Alamo. Cant find one with input side larger mounting holes and correct spline and increasing gear ratios (looks to be about 1:4).
Options are limited beyond finding a salvage unit, buying a new box, or buying a used complete mower to rob the gearbox.
Any thoughts?
Xfaxman
Super Star Member
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- Feb 8, 2013
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- 12,889
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- Guthrie, OK
- Tractor
- Toolcat 5610 G - Bobcat V417 - TORO+Loader
Clean out all the metal filings and fill to the recommended level with corn head grease, or NLGI grade 0 grease. It flows like gear lube when the gears are turning.
The epic grease in a gearbox thread: https://www.tractorbynet.com/forums/attachments/271324-grease-rotary-cutter-gear-box.html
jonsstihl
Veteran Member
The wear on the teeth doesn't look too bad but hard to tell with a photo. It looks like they are just a little frosted and not yet spalling. Is there a noticeable step in between the worn and not worn area of the loaded side of the teeth.
Try running ATF in it for a few hours. At this point you have not much too lose. I had a brand new gearbox in a snow blower making metal and he told me his buddies running commercial snowblowers (huge ones for road sides) run nothing but ATF in those gearboxes and they stopped having metal problems in them. They also run ATF (dexron mercron) in their snowmobile chain cases and those have stopped making metal too.
I run it in my blower gearbox and the metal particles stopped. All though I realize the ambient temperatures of the applications are different. I suggest doing a test for a few hours.
maybe with any luck it is a bearing that is going instead of the expensve gears.
Try running ATF in it for a few hours. At this point you have not much too lose. I had a brand new gearbox in a snow blower making metal and he told me his buddies running commercial snowblowers (huge ones for road sides) run nothing but ATF in those gearboxes and they stopped having metal problems in them. They also run ATF (dexron mercron) in their snowmobile chain cases and those have stopped making metal too.
I run it in my blower gearbox and the metal particles stopped. All though I realize the ambient temperatures of the applications are different. I suggest doing a test for a few hours.
maybe with any luck it is a bearing that is going instead of the expensve gears.
jonsstihl
Veteran Member
I've had my blower ten years and have been running ATF in the gearbox for nine years after the dealer told me a small amount of metal shavings was normal and that it was not covered by the warranty.
whirly
Gold Member
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- Sep 3, 2011
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- Pepe'ekeo, HI
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- Fordson Power Major, Kubota MX5100HST
Worn is not "broken".
Ware is to be expected and no used gear box will be without ware marks. I see no broken cogs and the ware seems to be even. Put it back together and check the SLOP in the gears. i.e. - see how much wiggle is at the output sheave. That gear box could have another 5-10 years or more of use depending on how much you plan to use it. I suspect the oil was never or seldom changed. Clean the housing to remove any old metal shavings. Then use 140 gear oil and change it a couple of times after 5 or 10 hours of use and see if it clears up.
Just trying to save you some expense. The worse that can happen is you will need replace the gear box ... but that is what you were already planning to do.
Ware is to be expected and no used gear box will be without ware marks. I see no broken cogs and the ware seems to be even. Put it back together and check the SLOP in the gears. i.e. - see how much wiggle is at the output sheave. That gear box could have another 5-10 years or more of use depending on how much you plan to use it. I suspect the oil was never or seldom changed. Clean the housing to remove any old metal shavings. Then use 140 gear oil and change it a couple of times after 5 or 10 hours of use and see if it clears up.
Just trying to save you some expense. The worse that can happen is you will need replace the gear box ... but that is what you were already planning to do.